Good point. I had thought about a lightweight 11.5" CMMG, but since it will eventually get a suppressor maybe I’ll go with a medcon.
I personally wouldn’t go CMMG if I knew I’d be running a supressor.
Too many damaged cans on TOS were mounted on CMMG barrels. (I know this isn’t “first hand” experience, but more of a gut reaction based on the pics i’ve seen)
Wilson 11.5" EXT and LMT 10.5" are what I use. I’ve never had a reason to look elsewhere, though there are always new products popping up from some very reputable manufacturers.


CMMG 11.5 Government profile, Vltor Vis extended midlength,
I have a 16" midlength CMMG tube that won’t shoot Wolf ammo. I know the simple answer is, don’t shoot Wolf, but i wanted something i could run anything thru (like my Colt
). I emailed CMMG, and i was told not to run non-brassed cased ammo thru it.
FYI, if you’re a Wolf shooter
Why wont it shoot Wolf? Whats happening?
What buffer are you running?
If it short strokes, go to a lighter buffer.
I’ve shoot both Wolf and Barnaul in my CMMG 16 middy, Colt 16" M4 and a Colt 16" lightweight without any problems. They all had H buffers.
I’ve tried a standard carbine buffer; H; H2; 9mm, the results were all the same. The casing would stick in the chamber, requiring a cleaning rod to push it out. This happens ONLY with Wolf; Radway M855, US M855, M193, Q3131A, S&B, American Eagle 52 gr, and BH 75 gr BTHP all work without a hitch. I even took a low round count ( under 500 rounds) rifle course and it ran without issue with Guat 55 gr.
MH64, FYI my Colt 16" ltwt will also run Wolf all day long. I did have a 16" HBAR Bushy w/AK brake that would run every kind of ammo just fine, until it tried Wolf lacquer…jammed it up good, also requiring a rod to push out the case.
NOT the same lot.
Have you tried upgrading the extractor spring? Maybe this would help.
That should not be necessary on a mid-length gas system.
It will actually cause failure to eject problems in some guns.
Its one more thing to try.
Have been running upgraded extractors on two of my midlength barrels without any problems.
YMMV
i always add McFarland 1 pc rings and Specialized Armament green springs w/black inserts. I can’t remember if that gun also has a Crane O Ring or not. Forgot to mention that part ![]()
Well you could try removing the extractor upgrades and seeing how it runs with Wolf.
I’m not a huge fan of Wolf, seeing how it downed TWO rifles, not just one. I’d prefer to ‘solve’ it by just not shooting Wolf through my guns.
That is the only complaint I have about my CMMG uppers. I have 2 14.5’s, 2 11.5’s and 1 20" upper
All the uppers do not like Wolf. They shoot everything else perfectly.
Mega bump, but I don’t think it’s necessary to make a new thread for one question. rob_s, or anyone, can you elaborate on this caveat? I am planning on building a 11.5" lightweight upper with a BC2.0 and eventually a HALO (when funds allow). Do you recommend a heavier profile barrel since I’ll be running it suppressed?
TIA
What you’re asking he answered in the quoted text.
Yes get a standard gov’t profile barrel.
I don’t know what lengths they’re making now, but the Noveske N4 and the Centurion Arms mid-weight profile would be the best for suppressing.
Thanks for clearing that up. I didn’t know if I needed a heavy profile barrel or go with a .gov profile barrel.